Source of SWAR

[[Intel#isa]] > [[MMX]] > [[SWAR]] > [[SIMD]]

- https://en.wikipedia.org/wiki/SWAR

- SWAR: SIMD Within A Register
-- http://www.aggregate.org/SWAR/
- Compiling For SIMD Within A Register
--  http://www.phys.aoyama.ac.jp/~w3-furu/aoyama+/Tech_notes/adaptor_doc/Users_Guide.pdf